How I Met Your Mother, Season 8

[Lily discovers that her father took care of baby Marvin all day]

Lily:
Wow. That's incredible. When did you get so good with kids?

Mickey Aldrin:
You know something honey, you don't know this. For the first few years of your life, your mom worked while I was a stay-at-home dad.

Lily:
I thought Grandma and Grampa took care of me.

Mickey:
Well, they visited a lot, but I was the one who took care of you. You know, America thinks I ran into that burning house to get potato salad, but actually, I ran into the house to get this photo album - and potato salad. [shows Lily album]

Lily:
Dad, I never realized you were there for me. How come there are no pictures of me after preschool?

Mickey:
Well...

[recounts flashback of first day at preschool]

Mickey:
Well, have fun on your first day at preschool, princess. [kisses Lily and gives her food] Well, off you go. [after Lily gets inside classroom] Ugh, how am I gonna make it to three o'clock without her? [sees newspaper] Belmont Racetrack? Well, I guess it couldn't hurt to bet just once.

[back to present]

Mickey:
Six months later, guess what gambling addict's thumbs had pins on them? [flashes thumbs] This guy! ... Look honey, I wasn't there for most of your childhood and I regret that every single day of my life, but I promise you, I'm here now for Marvin. If you want.

Lily:
You're hired. [embraces Mickey]